Apparatus for electrodepositing metals.



10.874,374'. EATBNTBD DE01?, 1907.

W. MLLER & G. R. MURRAY. v APPARATUS POR ELECTRODEPGSITING METALS.

APPLICATION PILB'D MAY 1s. 1904.

3 SHEETS-SHEET 1 No. 874,374'. n PATLNTRD DRG. 17, 1907, W. MLLER L c. R. MURRAY. APPARATUS PoR LLRGTRODRPORITING METALS.

APPLICATION FILED MAY 13, 1904,

3 SEEETSSHEET 2.

PATENTED DEG. 17, 1907. W. MLLER 6L C. R. MURRAY. APPARATUS FOR ELEGTRODEPOSITI-NG METALS.

APPLICATION FILED MAY 13, 1904.

3 SHEETS-SHEET 3 UNITED s TATEs PATENT oEEicE.

.WILHELM MLLER, or oFEENBAoILoN-THE-MAIN, GERMANY, AND oHARLEs R. MURRAY,

` OF CHICAGO, ILLINOIS, ASSIGNORS TO ACTIENGESELLSCHAFT FUR SCHRIFTGIESSEREI y UND MACHINENBAU, OF OFFENBACH, GERMANY, A CORPORATION OF GERMANY.

APPARATUS vFOR ELECTRODEPOSITING METALS.

Specification of Letters Patent;

Patented Dec. 17, 1907..

Alpnlicationiilad M 13.1904. Sei-iai No.v 207.853.

To all 'whom it may concern:

Be it known that we, vWTLHELM MLLER, a sub'ect of the Em eror of Germany, residing at Offenbach-on-t e-Main, Hesse, Germany, and CHARLES R. MURRAY, a `citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in 'Apparatus for Electrodepositingv Metals, of which the following is a full, clear, concise, and exact deseriptiomreference being hadto the accompanying drawings, forming a part of this specification. p

Our invention relates to apparatus for the electrodeposition of metals, and es ecially to an apparatus of this kind adapte for use in electrodepositing metals for type matrices. The object of the invention is to provide a simple, practical, inexpensive and effective ap aratus of this kind.

n the accompanying drawings, Figure 1 is a view partly in elevation and fpartly diagrammatic, of an apparatus o the class specified, .embodying my invention; Fig. 2 is a side elevation of the tanks used in such aparatus; Fig. 3 is la 'top plan of the same;

lig. 4 is a section taken on line 4 4 in Fig. 2; and Figs. 5 and 6 are views of details of construction.

Referring first to Fig. 1, A, A are tanks in which the electrodeposition of the metal is to be carried on. B is a dynamowhich is to .-f-ipply the current. C, C are` storage batteries which are to be charged by the dynamo B; and D is a switchboard for properly connecting the tanks A, A,.the dynamo B and the storage batteries C, C.

The construction of the tanks A, A is best shownin Figs. 2 and 3. These two tanks are mounted in suitable framework E, the tanks resting on suitably supported tables or platforms 1, 1. A pair of sliding rods 2, 2 are arranged on opposite sides of the frame E near the top thereof, and 'supported by bearings, 3, 3. Cross rods 4, 4 are sfecured to the rods 2, 2. Slots 5, 5, are provided in the sides of the frame E to accommodate the rods 4, 4. Eccentric rods 6, 6 are pivotally secured to the ends of the rods 2, 2and are connected' with eccentrics 7, 7 on a rotary shaft 8 supported in bearings 8, 8a at the end of the frame E. The shaft 8 is provided with a worm gear 9 which gears with a worm 10 on a shaft 11 of an electric motor 12 which i -]7 are secured to and extend from the tube 14a nearly to the opposite side of the tanks. The supporting rods 16, 16 are substantially above the cross rods 4, 4. Electrical conductors 18, 18a are led into the tubes 14, 14, and through the same, andI are connected with the ,respective rods 16, 16 and 17, 17. The conductor 18 is understood to be positive and the conductor 18 negative. The rods 17, 1'7 are then for the anodes and the rods 16, 16 for the -cathodes. The rods 17, 17

vsupport blocks 19, 19 of the metal to bev electrodeposited. They are also shown provided with carbon blocks 20, 20.' The articles on which the deposit is to be made are suspended from the rods 16,16 as at 21, Fig. 4.

' A heating` arrangement is-located below the tanks A. The arrangement shown comprisesl a gas pipe 22 arranged lengthwise and at the bottom of the frame E. This pipe is provided with branch pipes 23, 23 having burners 24, 24 located below the tanks A, A. Doors 25, 25 are arranged immediately below the tanks, and an escape pipe 26 extends from one end ofthe space below the tanks.

The tanks thus set forth are operated by suspending the articles to be plated,`on the rods 16, 16, and blocks or plates of metal, on the rods 17 17. The current then passes from'the rods 17 17, and the anodes, to the cathodes and rods 16, 16 so as to perform the electrolytic deposition of themetal, it being understood that the tanks A, A are provided with suitable chemical solutions in accordance with the processes to be carried 0n. The motor 12 is operated, and in doingso, causes a reciprocal movement of the rods 2, 2with the result that the cross rods 4, 4 move back and forth and push against the rods or wires supporting the articles 21 so as to swing A said articles 4slightly back and forth inthe solution and thereby prevent the. accumulation of bubbles. f

Referring to` Fig. u-1 the switchboard D is understcood to be of suitable insulating material, and is provided with `two ammeters 27, 27a, and a Voltmeter 28. 'Two indicators 29, 29UL for indicating the direction of current are located below the ammeters 27, 27a. A Voltmeter switch 30 is located below' the Voltmeter 28, a dynamo rheostatw31- is located below one of the indicators'29, and a' tank rheostat 32 is located below the other indicator 29a. Double pole switches 33, 34 are located below the rheostats 31 and32, and-the circuit breaker 35 is arranged between the switches 33 and 34. The conductor 18a leading from the tanks A, A is connected with the 'rheostat 32, and the conductor 18 with one side of the switch 34. Y A

conductor 36 connects therlieostat 32 with the ammeter 27 a, and another cond uctor 37 connects said ammeter with the other side of the switch 34 including also the indicatory 29a. The voltmeter 28 and Voltmeter switch 30 are connected by conductors'38, 38. The

`ainrneter 27 is connected with the circuit breaker 35 by a conductor 39, and with the.

indicator 29 and rheostat 31 by a conductor 40. The rheostat 31 is also connected with one side of the switch 33 by a conductor 41', and the other side of said switch is connected by a conductor 42 with the dynamo B, the other terminal or pole of which is connected with the circuit breaker 35 by a conductor 43. The storage battery C is connected with one pair of terminals of theswitches 33, and

' 34,.by conductors 44 and 44a, and the other same can be used to carry on the electrostorage battery C -is connected with another set oli? terminals forl said switches, by conductors 45, a. By such arrangement the two batteries C and C can either one be charged by the dynamo B, and either of the deposition of meta-l, and the proper indications will be made during such operations.

' tery C is being charged by the dynamo B, it

being seen that the dynamo circuit runs by way ct theconductor 42 to the ,switch 33, thence to the battery by conductor 44, and back by conductor 44a to switch 33, conductor 41, rheostat 31, conductor 40` indicator 29, ammeter 27, conductor 39, circuit breaker and conductor 43 to dynamo. Thus the amount of charging current is inl/Vitnesses: The apparatus shown is set so that the bati fdicated by the amrneter 27, and the' direction of the current by the indicator 29. The

dynamo current is adjusted or varied as ref` quired by the rheostat' 31.' At .the sainetime the electrodeposition is being carried on by the battery C. The circuit is by way of conductor 45 to-switch 34, thence to con ductor 18, and back by way ofconduct0118. to rheostat 32, conductor 36, ammeter 27,

indicator 29", conductor 37, switch- 34, andA conductor 45a, to battery C. The amount of current used lin the electrodeposition is indicated by the arnrneter 27 a, and its direction by the-indicator 29a. To discontinue charging `the battery C thel switch 33 isopened. To cause this battery to carry on theelectrodeposition, said switch isclosed with the other set of contacts. To discontinue the deposition by the lbattery C', thev switch34 is opened; and to charge this 'bat- `teryby the dynamo B, said switclrs thrown" to close it with the upper set of contacts.

It will be seen that the apparatus is prac- 'I tical and ehcient and can be easily operated and controlled. It will be understood that changes and modifications can be made `without departing from the spirit ofthe invention..

What we claim is The combination of a tank, apair of slide rods running lengthwise ofthe tank, bearings on the side of the tank for said slide rods, a

In witness whereof, I, said WILHELMA MLLER hereunto subscribe my' name, this 25th day of April, A. D. 1904. WILHELM MULLER.

JEAN GRUND, CARL GRUND.

In witness whereof, I, said CHARLES R. MURRAY, hereunto subscribe my name this 29th day of Eebruary, A.- D. 1904.

CHARLES R. MURRAY.

Witnesses:

EDWIN N. McADAM, HORACE W. TARBELL., 

